I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
byrls burls birls brawls birles brills beryls borals broils brails brillos burials barlows barrels braless barless burleys barleys barillas brailles brollies browless berryless borrelias brulzie
byrls birls marls morels corrals goorals carrels nerols gnarls orals jurels carls herls parrals parles pearls girls arles purls aryls ceorls virls sorels beryls zorils birles tirls barrels whorls quarrels churls merls arils burls hurls laurels morals corals curls carols knurls murals nurls jarls carles harls parols orles parrels ferrels borals perils ferals pyrrols furls saurels farles sorrels earls dirls farls whirls gorals chorals merles shorls
byrl barley barlow birl birle brill brillo brolly burl burley burly